Are you familiar with Cantab Terriers? Back in the day, they were highly fashionable for students to keep in their rooms at Cambridge University in England. One such student was E. Jodrell Hopkins who kept several of the dogs in his rooms. When he graduated in 1899, he opened a livery stable where he bred and sold his dogs. Eventually, the small strain of dogs he developed came to be called Trumpington Terriers for the street on which the livery was located.
Puppies either had drop or prick ears, and both were allowed when the prick eared was first recognized the Kennel Club in England in 1932. It didn’t eliminate, however, a long-standing controversy over whether the drop-eared dogs should be allowed in the show ring, and whether the differences between the two was simply the ears or something more.
In time, the Kennel Club recognized the drop-eared variety as a separate breed which we now know as the Norfolk Terrier, and in 1964, the AKC, UKC and the Canadian Kennel Club followed suit in 1979.
Norfolk Terrier by Paul Doyle